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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* @brief Enhanced Metafile Input/Output
*/
/* Authors:
* Ulf Erikson <ulferikson@users.sf.net>
* David Mathog
*
* Copyright (C) 2006-2008 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef SEEN_EXTENSION_INTERNAL_EMF_H
#define SEEN_EXTENSION_INTERNAL_EMF_H
#include <3rdparty/libuemf/uemf.h>
#include <3rdparty/libuemf/uemf_safe.h>
#include <3rdparty/libuemf/uemf_endian.h> // for U_emf_record_sizeok()
#include "extension/internal/metafile-inout.h" // picks up PNG
#include "extension/implementation/implementation.h"
#include "style.h"
#include "text_reassemble.h"
namespace Inkscape {
namespace Extension {
namespace Internal {
#define DIRTY_NONE 0x00
#define DIRTY_TEXT 0x01
#define DIRTY_FILL 0x02
#define DIRTY_STROKE 0x04
struct EMF_OBJECT {
int type = 0;
int level = 0;
char *lpEMFR = nullptr;
};
using PEMF_OBJECT = EMF_OBJECT *;
struct EMF_STRINGS {
int size = 0; // number of slots allocated in strings
int count = 0; // number of slots used in strings
char **strings = nullptr; // place to store strings
};
using PEMF_STRINGS = EMF_STRINGS *;
struct EMF_DEVICE_CONTEXT {
EMF_DEVICE_CONTEXT() :
// SPStyle: class with constructor
font_name(nullptr),
clip_id(0),
stroke_set(false), stroke_mode(0), stroke_idx(0), stroke_recidx(0),
fill_set(false), fill_mode(0), fill_idx(0), fill_recidx(0),
dirty(0),
// sizeWnd, sizeView, winorg, vieworg,
ScaleInX(0), ScaleInY(0),
ScaleOutX(0), ScaleOutY(0),
bkMode(U_TRANSPARENT),
// bkColor, textColor
textAlign(0)
// worldTransform, cur
{
sizeWnd = sizel_set( 0.0, 0.0 );
sizeView = sizel_set( 0.0, 0.0 );
winorg = point32_set( 0.0, 0.0 );
vieworg = point32_set( 0.0, 0.0 );
bkColor = U_RGB(255, 255, 255); // default foreground color (white)
textColor = U_RGB(0, 0, 0); // default foreground color (black)
worldTransform.eM11 = 1.0;
worldTransform.eM12 = 0.0;
worldTransform.eM21 = 0.0;
worldTransform.eM22 = 1.0;
worldTransform.eDx = 0.0;
worldTransform.eDy = 0.0;
cur = point32_set( 0, 0 );
};
SPStyle style;
char *font_name;
int clip_id; // 0 if none, else 1 + index into clips
bool stroke_set;
int stroke_mode; // enumeration from drawmode, not used if fill_set is not True
int stroke_idx; // used with DRAW_PATTERN and DRAW_IMAGE to return the appropriate fill
int stroke_recidx;// record used to regenerate hatch when it needs to be redone due to bkmode, textmode, etc. change
bool fill_set;
int fill_mode; // enumeration from drawmode, not used if fill_set is not True
int fill_idx; // used with DRAW_PATTERN and DRAW_IMAGE to return the appropriate fill
int fill_recidx; // record used to regenerate hatch when it needs to be redone due to bkmode, textmode, etc. change
int dirty; // holds the dirty bits for text, stroke, fill
U_SIZEL sizeWnd;
U_SIZEL sizeView;
U_POINTL winorg;
U_POINTL vieworg;
double ScaleInX, ScaleInY;
double ScaleOutX, ScaleOutY;
uint16_t bkMode;
U_COLORREF bkColor;
U_COLORREF textColor;
uint32_t textAlign;
U_XFORM worldTransform;
U_POINTL cur;
};
using PEMF_DEVICE_CONTEXT = EMF_DEVICE_CONTEXT *;
#define EMF_MAX_DC 128
struct EMF_CALLBACK_DATA {
EMF_CALLBACK_DATA() :
// dc: array, structure w/ constructor
level(0),
E2IdirY(1.0),
D2PscaleX(1.0), D2PscaleY(1.0),
MM100InX(0), MM100InY(0),
PixelsInX(0), PixelsInY(0),
PixelsOutX(0), PixelsOutY(0),
ulCornerInX(0), ulCornerInY(0),
ulCornerOutX(0), ulCornerOutY(0),
mask(0),
arcdir(U_AD_COUNTERCLOCKWISE),
dwRop2(U_R2_COPYPEN), dwRop3(0),
MMX(0),MMY(0),
drawtype(0),
pDesc(nullptr),
// hatches, images, gradients, struct w/ constructor
tri(nullptr),
n_obj(0)
// emf_obj;
{};
Glib::ustring outsvg;
Glib::ustring path;
Glib::ustring outdef;
Glib::ustring defs;
EMF_DEVICE_CONTEXT dc[EMF_MAX_DC+1]; // FIXME: This should be dynamic..
int level;
double E2IdirY; // EMF Y direction relative to Inkscape Y direction. Will be negative for MM_LOMETRIC etc.
double D2PscaleX,D2PscaleY; // EMF device to Inkscape Page scale.
float MM100InX, MM100InY; // size of the drawing in hundredths of a millimeter
float PixelsInX, PixelsInY; // size of the drawing, in EMF device pixels
float PixelsOutX, PixelsOutY; // size of the drawing, in Inkscape pixels
double ulCornerInX,ulCornerInY; // Upper left corner, from header rclBounds, in logical units
double ulCornerOutX,ulCornerOutY; // Upper left corner, in Inkscape pixels
uint32_t mask; // Draw properties
int arcdir; //U_AD_COUNTERCLOCKWISE 1 or U_AD_CLOCKWISE 2
uint32_t dwRop2; // Binary raster operation, 0 if none (use brush/pen unmolested)
uint32_t dwRop3; // Ternary raster operation, 0 if none (use brush/pen unmolested)
float MMX;
float MMY;
unsigned int drawtype; // one of 0 or U_EMR_FILLPATH, U_EMR_STROKEPATH, U_EMR_STROKEANDFILLPATH
char *pDesc;
// both of these end up in <defs> under the names shown here. These structures allow duplicates to be avoided.
EMF_STRINGS hatches; // hold pattern names, all like EMFhatch#_$$$$$$ where # is the EMF hatch code and $$$$$$ is the color
EMF_STRINGS images; // hold images, all like Image#, where # is the slot the image lives.
EMF_STRINGS gradients; // hold gradient names, all like EMF[HV]_$$$$$$_$$$$$$ where $$$$$$ are the colors
EMF_STRINGS clips; // hold clipping paths, referred to be the slot where the clipping path lives
TR_INFO *tri; // Text Reassembly data structure
int n_obj;
PEMF_OBJECT emf_obj;
};
using PEMF_CALLBACK_DATA = EMF_CALLBACK_DATA *;
class Emf : public Metafile
{
public:
Emf(); // Empty constructor
~Emf() override;//Destructor
bool check(Inkscape::Extension::Extension *module) override; //Can this module load (always yes for now)
void save(Inkscape::Extension::Output *mod, // Save the given document to the given filename
SPDocument *doc,
gchar const *filename) override;
SPDocument *open( Inkscape::Extension::Input *mod,
const gchar *uri ) override;
static void init();//Initialize the class
private:
protected:
static void print_document_to_file(SPDocument *doc, const gchar *filename);
static double current_scale(PEMF_CALLBACK_DATA d);
static std::string current_matrix(PEMF_CALLBACK_DATA d, double x, double y, int useoffset);
static double current_rotation(PEMF_CALLBACK_DATA d);
static void enlarge_hatches(PEMF_CALLBACK_DATA d);
static int in_hatches(PEMF_CALLBACK_DATA d, char *test);
static uint32_t add_hatch(PEMF_CALLBACK_DATA d, uint32_t hatchType, U_COLORREF hatchColor);
static void enlarge_images(PEMF_CALLBACK_DATA d);
static int in_images(PEMF_CALLBACK_DATA d, const char *test);
static uint32_t add_image(PEMF_CALLBACK_DATA d, void *pEmr, uint32_t cbBits, uint32_t cbBmi,
uint32_t iUsage, uint32_t offBits, uint32_t offBmi);
static void enlarge_gradients(PEMF_CALLBACK_DATA d);
static int in_gradients(PEMF_CALLBACK_DATA d, const char *test);
static uint32_t add_gradient(PEMF_CALLBACK_DATA d, uint32_t gradientType, U_TRIVERTEX tv1, U_TRIVERTEX tv2);
static void enlarge_clips(PEMF_CALLBACK_DATA d);
static int in_clips(PEMF_CALLBACK_DATA d, const char *test);
static void add_clips(PEMF_CALLBACK_DATA d, const char *clippath, unsigned int logic);
static void output_style(PEMF_CALLBACK_DATA d, int iType);
static double _pix_x_to_point(PEMF_CALLBACK_DATA d, double px);
static double _pix_y_to_point(PEMF_CALLBACK_DATA d, double py);
static double pix_to_x_point(PEMF_CALLBACK_DATA d, double px, double py);
static double pix_to_y_point(PEMF_CALLBACK_DATA d, double px, double py);
static double pix_to_abs_size(PEMF_CALLBACK_DATA d, double px);
static void snap_to_faraway_pair(double *x, double *y);
static std::string pix_to_xy(PEMF_CALLBACK_DATA d, double x, double y);
static void select_pen(PEMF_CALLBACK_DATA d, int index);
static void select_extpen(PEMF_CALLBACK_DATA d, int index);
static void select_brush(PEMF_CALLBACK_DATA d, int index);
static void select_font(PEMF_CALLBACK_DATA d, int index);
static void delete_object(PEMF_CALLBACK_DATA d, int index);
static void insert_object(PEMF_CALLBACK_DATA d, int index, int type, PU_ENHMETARECORD pObj);
static int AI_hack(PU_EMRHEADER pEmr);
static uint32_t *unknown_chars(size_t count);
static void common_image_extraction(PEMF_CALLBACK_DATA d, void *pEmr,
double dx, double dy, double dw, double dh, int sx, int sy, int sw, int sh,
uint32_t iUsage, uint32_t offBits, uint32_t cbBits, uint32_t offBmi, uint32_t cbBmi);
static int myEnhMetaFileProc(char *contents, unsigned int length, PEMF_CALLBACK_DATA d);
static void free_emf_strings(EMF_STRINGS name);
};
} } } /* namespace Inkscape, Extension, Implementation */
#endif /* EXTENSION_INTERNAL_EMF_H */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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